curl --request POST \
  --url https://api.example.com/v1/ui/admin/providers \
  --header 'Content-Type: application/json' \
  --data '
{
  "legalEntity": {
    "name": "<string>",
    "address": {
      "line1": "<string>",
      "line2": "<string>",
      "line3": "<string>",
      "city": "<string>",
      "stateOrCounty": "<string>",
      "postcode": "<string>",
      "country": "<string>"
    },
    "bankAccount": {
      "country": "<string>",
      "currency": "<string>",
      "accountHolderName": "<string>",
      "accountHolderType": "individual",
      "iban": "<string>",
      "bic": "<string>",
      "routingNumber": "<string>",
      "sortCode": "<string>",
      "bankCode": "<string>",
      "accountNumber": "<string>",
      "bankName": "<string>"
    },
    "companyNumber": "<string>",
    "mainActivity": "<string>",
    "additionalActivities": [
      "<string>"
    ],
    "personIds": [
      "<string>"
    ],
    "people": [
      "<unknown>"
    ]
  },
  "metadata": {},
  "description": "<string>",
  "website": "<string>",
  "businessType": "individual",
  "businessEmail": "jsmith@example.com",
  "supportEmail": "jsmith@example.com",
  "telephone": "<string>",
  "supportTelephone": "<string>",
  "reference": "<string>",
  "defaultCurrency": "<string>"
}
'